Gin pole



E. L. YOUNG July 2, 1929.

GIN POLE Filed June 11, 1927 Patented July 2, 1929.

UNITED STATES EDWARD L. YOUNG, OF LTTLE YORK, ILLINOIS.

GIN POLE.

Application filed June 11,

This invention has reference to certain new and useful improvements in gin poles, and particularly to that type of gin pole especially useful in the raising and in the assembling in operative position of the wind-wheel and associated mechanisms on the towei ot' a windmill, and for repairing or disassemhling such parts.

One of the objects of the present invention is to provide such a pole with a davit adapted to fit over the shoulder of a person, whereby the pole may be supported from the shoulder and the persons arms and hands left free to assist in ascending a tower to place the pole in working position. and in desceiuling and removing such pole from the tower.

The invention has for a further object to provide adjustable means on the pole to adapt it to be secured in working position on towers of different makes and di ferent constructions.

A further object of the invention to provide such a pole with means to attach the pole to a windmill tower, including` foot-rests to support a person, in the event and when it is inconvenient for such a person to stand on the tower platform.

Other and further objects will more fully appear in the description of the device.

That the invention may be more fully understood, reference is had to the accompanying drawings forming part of this description, illustrating a preferred embodiment of the invention, in which Fig. 1 shows an elevation of the gin pole on a. greatly reduced scale, partly in section. and illustrating by dotted lines a windmill tower and the working position of thel pole thereon;

Fig. 2 is a side elevation of a part of the gin pole seen in Fig. 1;

Fig. 3 is a cross-section, in plan, as the same would appear if taken on the line 3 3, Fig. 2;

Fig. 4t is a perspective view of a preferred form of clamp;

Fig. 5 is a cross-section in plan as the same would appear if taken on the line 5 5, Fig. 2, and

Fig. (3 is a view similar to Fig. 5. except that the securing hooks are differently shaped.

Like characters of reference denote corresponding parts throughoutI the figures.

The windmill tower, which in itself is noty new, I have chosen to show in dotted lines 1927. Serial No. 198,174.

and then only the extreme upper part thereof. These towers are generally constructed with metal standards u, preferably of angle iron, their upper parts converging and being secured together. 'lhere may be three (3) or four such standards. As to this detail l am not much concerned, except as it alfects the particular style of clamping hooks, see for instance Figs. 5 and (5. The former shows the tower with three standards and the latter with four standards. At a suitable point removed below the extreme upper end of the tower, such a tower is usually provided with a platform The gin poie comprises preferably a tubular pole 1 of any suitable length. To its lower end is secured a transverse supporting and brace bar Q provided with the longitudinal slots 3 disposed in and through said bar on opposite sides of the pole 1. Metal braces l connect Athe bar with the pole and where united with the bar provide foot-rests 5 and guards 6.

Slidably adjustable on the pole 1 is a transverse supporting and brace bar 7, preferably shorter in length than the bar 2, and said bar 7 is provided with the longitudinal slots 8 disposed in and through said bar on opposite sides of the pole 1. To one side of this bar 7 is inset a metal plate 9 having a curved seat to conform to the contour of the pole surface lying next thereagainst, and also to the same side of said bar is secured a metal strap 1() having an arcuate portion 11 adapted to eX- tend part way around the pole and together with the curved seal of the plate 9 provides a hearing surface of metal for the metal pole and to strengthen the bar and prevent. wear on the slidabie surfaces o i the bar. The strap 1() provided with slots coinciding with the slots 8 in said bar 9, and the areuate portion 11 of said strap has a boss through which is threaded an adjusting screw 12 for locking or securing the bar 7 in adjusted positions longitudinally of the pole 1 to properly position said bar 9 in its relation to the bar 2 when placing the gin pole in working position on a tower.

Clamping hooks 13 pass through the slots 3 in the bar 2 to engage with the standards (a of the tower and may have the shape shown in either Fig. or Fig. 6 and the ends of these hooks. opposite to their hooked ends are threaded so as to receive the thumb nuts 14 for locking or securing the clamping hooks to securely hold the bar 2 against the standards ot the tower. The tower structure may be such as will permit the bar Q to rest` on the platform in which event a person may stand on the platform; but should the gin pole be secured to the tower and the bar 2` be elevated at a position above the platform, such a person may stand on the toot-rests 5, as will be understood,

To the bar T are slidably held the clamps l5. Sach clamps include a channel st ap 1G lying next adjaeent one side tree of the bar with portions overlying the opposite edges and to such straps are united by welding' or otherwise the U shaped members 17, the leg por` lions. ot which are connected by pins 1S l'or the coupin-gj thereto ot a securing strap lt), 'l'he clamps l5 have bolts 2t) which pass through the slots t in the bar 7 and slots in the strap it) and to the threaded ends ot said bolts 2t) are connected the thumb nuts 2l for locking or securing; the clamps l5 to serurely hold the liar l() against the standards ot' the tower. The hooks l?, on the bar i2 engage with the flanges of the angles of the standards (L. whereas the clamps l5 are positioned so as to clamp the standards a ot. the tower therebetween, and the latter when so positioned are assisted by the strap l5). held by one post l8, passed about the standards a and caught. to the other post 18. as will be understood. These clamps, as will appear, an` ot such design and so connected to the bar l0 that it is impossible i'or the clamps to cant on such bar.

To the upper end ot the pole l is connected the davit Q2. This davit has thel stem portion 23 z laptcd i'or insertion into the open end ot the pole and has a roller Q4 on its inner end tor a roller'ebearing Contact with the inni surface ot the pole l, when the davit is swung from one position to another, sec lt'nll and dotted lines in Fig. l. A threaded cap 25 may be emploved to center the stem 2S. The b `am end of the davit has the curved portion E2G adapted to rest over the shoulder ot a person to facilitate in such a jierson carrying the same, leaving his arms and hands tree to assist in climbing a tower to secure the gin pole in working position, and to descend trom the tower with the pole. To the end of the davit. may be connected a suitable tackle which, together with the necessary ropes may be used for raising)` the wind-Wheel and associated parts or for lowering` the same when repairing or dismantling the mill.

I have provided, in addition to the foregoing' described elements a collar 27 slidably adjustable on the post 1 with a thumb nut- 28 tor securine' said collar in adjusted positions. This collar has eyes or loops 29 for the connection of guy ropes, if desirable, for bracing the pole`r should occasion require.

For the purposes described, my gin pole is convenient and easy ot' manipulation and Will taeilitate the easy and quick erection of a wind-wheel and associated parts of a windmill and for the easy, quick and convenient dismantling or repairing ot the same. Said fin pole, including as it does adjustably atitaching means, is adapted for practicable application to windmills of different structure and design and when once in working position is held iiim so that raising and lowering ol parts can be accomplished with little or no ditliculty and with little or no chance ot' danger.

lVhat I claim is A gin pole compising a pole member, a transverse supporting bar secured to one end o't' said pole, bracing' means between said bar and pole forming toot-rests at the outer ends oi said bar, securincr members longitudinally adjustable on said bar,r a second transverse supporting bar longitudinally adjustable on said pole, means for securing said bar in different positions on said pole, bracing,r clamps longitudinally adjustable on said last mentioned bar and a fastening strap cooperating with said clamp.

ln witness whereof` l have hereunto attixed my hand this 8th day of June, 1927.

EDVARD L. YOUNG. 

